20348366 has 4 divisors (see below), whose sum is σ = 30522552. Its totient is φ = 10174182.

The previous prime is 20348359. The next prime is 20348429. The reversal of 20348366 is 66384302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5087090 + ... + 5087093.

It is an arithmetic number, because the mean of its divisors is an integer number (7630638).

Almost surely, 2^20348366 is an apocalyptic number.

20348366 is a deficient number, since it is larger than the sum of its proper divisors (10174186).

20348366 is a wasteful number, since it uses less digits than its factorization.

20348366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10174185.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 20348366 is about 4510.9163148966. The cubic root of 20348366 is about 273.0087166864.

The spelling of 20348366 in words is "twenty million, three hundred forty-eight thousand, three hundred sixty-six".